Avalon VT-737sp Preamp - Class A Mono Tube Channel Strip. Circuit topology Four dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class A. Gain Range Microphone: Transformer balanced 850/2500 ohm, 0dB to +58dB Instrument. Maximum output level +30dB balanced 600 ohms, DC coupled, discrete Class A.Instrument+30dB unbalanced front panel jack socket. The Avalon VT-737sp Class A Mono Tube Channel Strip features a combination of TUBE preamplifiers, opto-compressor, sweep equalizer, output level and VU metering in a 2U space. The VT737SP Anniversary is identical in terms of circuitry, the only difference being cosmetic; the front panel is matt-black and the original orange LEDs have been replaced with cool blue ones.
In honor of the 10th anniversary of the release of the renowned VT-737sp Class A Mono Tube Channel Strip, Avalon has produced a special "Blackface" model. The VT-737SP features a combination of TUBE preamplifiers, opto-compressor, sweep equalizer, output level and VU metering in a 2U space. The VT737SP Anniversary is identical in terms of circuitry, the only difference being cosmetic; the front panel is matte-black and the original orange LEDs have been replaced with cool blue ones. PREAMPLIFIER The VT-737SP has three input selections: 1. The VT-737SP features a higher-performance microphone input transformer with +48v phantom selection.
Instrument DI high source input with jack located on front panel. Balanced line input, discrete high-level Class A.A high gain switch boosts the overall gain of the preamplifier. The four high-quality tubes are configured as singled-ended anode coupled followers. A passive-variable high-pass filter and hardwire relay bypass completes the input signal conditioning.
The phase reverse relay is available on all three inputs. OPTO-COMPRESSON The opto-compressor features a minimum signal path design with twin Class A vacuum tube triodes for gain matching.The optical attenuator acts as a simple passive level controller. Full dynamic control from soft compression to hard-knee limiting can be achieved with threshold, ratio-compression, attack and release controls plus gain reduction selection on the large VU meter. The item "Avalon VT-737sp Preamp Class A Mono Tube Channel Strip" is in sale since Saturday, July 25, 2020.
This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "whataclikes" and is located in Miami, Florida. This item can be shipped to United States.